On discipline

यतो यतो निश्चरति मनश्चञ्चलमस्थिरम् । ततस्ततो नियम्यैतदात्मन्येव वशं नयेत्

Sanskrit

यह अस्थिर और चञ्चल मन जहाँ-जहाँ विचरण करता है, वहाँ-वहाँसे हटाकर इसको एक परमात्मामें ही  लगाये।

From whatever cause the restless and unsteady mind wanders away, from that let him restrain it and bring it under the control of the Self alone.

Bhagavad Gita · Chapter 6 6.26

Sanskrit: public domain · Hindi tr. Swami Ramsukhdas · English tr. Swami Sivananda

What it means

However often the restless mind wanders off, gently bring it back.

Carry it today

Each time your attention drifts today, return it — calmly, as many times as needed.