Everything in this world is ephemeral and transitory; it is here today but may not be here tomorrow. So, if you want to crave something wholeheartedly, seek the Lord, who has no decline. In this transitory life, joy and pain are also perforce temporary. The self-same Lord gives and takes as and when He wishes. Everything is His, so how foolish it is to lament when things belonging to Him are taken back by Him! Therefore, the wise person doesn’t pine over anyone or feel undue attachment to anything. Let all the pining and all the attachment be for the Lord; He alone is eternal, the source of all joy. Love a person as a person, not more. If you love them more, it is a sign that you have been deceived about their real nature. You can behave only for a short time as if the house you have rented is your own! For, as soon as the lease period is over, it passes on to another.

– Dhyana Vahini, Chap 6: "Meditation reveals the Eternal
and Non-Eternal"

Only Divine Love is immutable and permanent. – Baba