This Will Not Last
The senses are the villains, they instil the delusion that you are the upadhi (container, disguise, encasement, limitation). Curb them as tbe bull is curbed by the nose-ring, the horse by the bit in the mouth, the elephant by the goad. When the Pândavas were traversing the Himalayas towards the end of their careers, Dharmaraja [Yudhishthhira] was still affected by mental anxieties and so he prayed to Lord Krishna to spend some time with them.
On His departure from their dwelling, Krishna gave Dharmaraja a note, which he was to read to himself whenever he was affected by joy or grief. The note read "eppudoo undadu" - 'it will not last forever'. That is one method by which mental agitations can be calmed