Bhagavad Gita 3.24 · Krishna
When guidance disappears
उत्सीदेयुरिमे लोका न कुर्यां कर्म चेदहम्।
सङ्करस्य च कर्ता स्यामुपहन्यामिमाः प्रजाः॥
utsīdeyurime lokā na kuryāṃ karma cedahamsaṅkarasya ca kartā syāmupahanyāmimāḥ prajāḥ
If I did not act, these worlds would fall apart. I would cause confusion and bring ruin to these beings.
What it means
Krishna goes further. If he stopped acting, the worlds would collapse. Order would give way to confusion. Beings would suffer. It's a picture of what happens when those meant to guide and sustain simply step away. Everything that relied on them begins to fall.
The story
Arjuna earlier feared that fighting would cause chaos. Krishna turns the fear around. Chaos comes when those with responsibility abandon it. Arjuna walking away could cause the very disorder he dreads.
In your life
Imagine a school where the headteacher suddenly stops showing up. Rules blur, staff drift, kids feel it first. If people rely on you, your presence is part of what keeps things whole.
Showing up keeps things from falling apart.