It is the nature of the mind to wander. It slips into the past or to the future every now and then. When mind slips into the past it often causes worry and when it slips into the future it often causes anxiety. Intellect has to be used to keep it in present as intellect controls the mind.

Here are 3 steps to live in the present according to Swami Anubhavananda Saraswati:

1. Drop memories about the past,
2. Never worry about the future,
3. Never compare for the present.