The point of this article is that to overcome our problems we must exercise our own, God-given willpower, at least as the first step. Calling on the Divine Power and attuning ourselves and our prayer with the Divine Will is the second step.
What does it mean to seek divine power and the divine will? In part, this refers to the intuitive understanding that God alone is the First Cause, the essential Doer and the underlying Reality of all things. In this remembrance, God is, at first, separate from us. But in the deeper our realization of this truth, God becomes not just the Doer but also the instrument. Our prayer becomes not so much a desire for health but a prayer to be "in tune" and that "Thy will be done."
If the solution to any problem is as simple as taking medicine, or having a surgery, or reach out for help, well fine, of course! Sometimes the karmic test involved with our illness is the obvious one: to draw upon the intelligence and willingness; forsake the temptation of denial; deal responsibly with the present reality; and, then take action to rise above that reality.
Another aspect of dealing with illness comes as we advance spiritually: "What comes of itself, let it come" Yogananda also counselled. While few people, even devotees, are ready for this stage, it is a true state of being wherein we don't even consider our karma to be ours: instead, what comes is the blessing of God's grace, the Divine Alchemist, refining the crude ore of our consciousness in the crucible of divine love.
One must, however, be sure not to hide behind this attitude to disguise fear, paralysis, or passivity. This state comes only with heroic self-giving to God in all matters of daily life. Swami Kriyananda, Ananda's founder, never prayed for healing for himself when illness struck or death threatened. His life provided countless opportunities to test his resolution. (He admitted that he did not expect others to be ready to live this way but simply stated that it was, for him, necessary and right.)
In the Old Testament, the Book of Job, the righteous man Job is tested by Satan to see if Job will remain faithful "to the Lord" if his health, wealth, wife, and reputation are taken away. (He does.) But Job's "friends" taunt him insisting that Job must have done something to deserve his troubles. Job insists he has not! This complex, hard, and subtle tale invites us to see all our tests as tests of our faith in God's goodness and wisdom, and our love for God. It took tremendous willpower and faith for Job to overcome the test he was given.
A devotee, then, sees illness not even as a test but ultimately as God's grace drawing us closer to Him. This does in NO way imply passivity. Swami Kriyananda described all tests as invitations to raise our energy. A saint may already be living in, for, with and AS God but the rest of us will have to go through some kind of step by step process.
I suppose there's no harm in dealing with illness only on medical terms: at least one is dealing with it on its own apparent level. But our emotional reaction to illness is the subtler and more important point. We have two opposing responses: on the one hand, objectifying illness as not ours can be a subterfuge for denial while, on the other hand, dwelling on one's "fault" can paralyze the willpower. So, the right response, well, depends on whether your intention and attitude lead you towards wisdom or ignorance.
Yogananda described depression as the result of past sense indulgence (prenatal or postnatal). That may seem simplistic but as the article cited above suggests, some cases of depression, perhaps many cases, involve a loss of connection with the world and people in our lives triggered or worsened by self-absorption and self-involvement. Unlike a traumatic accident like an automobile crash wherein the hospital treats your body without regard to your involvement (especially if unconscious), depression, like other addictions, requires the willpower and motivation on the part of the one who is ill. One has to WANT to reconnect with life again.
As we all know, depression sometimes results in suicide. Yogananda commented that a baby who dies at childbirth or in early childhood (and perhaps even later as a young adult) may have been a soul reborn who previously committed suicide. The premature death in a later life, he said, is intended by the law of karma to reawaken the soul's desire for and appreciation of life again.