Sadhana as a Tapas

Indian and Classical Greek philosophical traditions both recommend that we structure our lives around the performance of certain kinds of actions as daily and regular habits. Under some circumstances and for some individuals, this means merely doing what comes naturally. For others, it requires varying degrees of self-control. For yet others, adhering to these practices is impossible or unimportant, beyond the scope of their interests or abilities. I want to take issue with one familiar answer to the question of why this is, and to suggest a different one.