One verse

Srimad Bhagavatam 4.8.32

4.8.32

अतो निवर्ततामेष निर्बन्धस्तव निष्फल: । यतिष्यति भवान् काले श्रेयसां समुपस्थिते ॥ ३२ ॥

ato nivartatam esa nirbandhas tava nisphalah yatisyati bhavan kale sreyasam samupasthite

atah
hereafter
nivartatam
just stop yourself
esah
this
nirbandhah
determination
tava
your
nisphalah
without any result
yatisyati
in the future you should try
bhavan
yourself
kale
in due course of time
sreyasam
opportunities
samupasthite
being present.

For this reason, my dear boy, you should not endeavor for this; it will not be successful. It is better that you go home. When you are grown up, by the mercy of the Lord you will get a chance for these mystic performances. At that time you may execute this function.