Lack of discipline is the gap between what we say we will do and what we actually do. We plan to wake early, study, exercise or meditate, and then drift. It is rarely about weak character alone. Poor routines, scattered attention and waiting for motivation to arrive all play a part, and each skipped day makes the next one easier to skip.
The Gita places discipline in the mind first. Gita 6.5 says you must lift yourself by yourself, because a disciplined mind becomes an ally while an uncontrolled one becomes a cause of downfall. Gita 6.28 says constant practice, not occasional inspiration, leads to lasting joy. Gita 6.16 warns that yoga cannot be perfected through extremes and recommends balance in eating, sleeping and daily habits, and Gita 4.27 shows knowledge-guided discipline turning every activity into growth.
Use these ideas to build a routine you can keep. Choose a modest daily practice, as Gita 6.28 implies. Avoid dramatic swings in sleep, food, work and recreation, as in Gita 6.16. Gita 8.6 reminds us that what we constantly dwell on shapes who we become, so protect your attention. Gita 16.23 warns against acting on impulse alone, so seek guidance before big decisions.