Everything that has beginning that has end too. Everything that which is born, that dies. There is nothing worth clinging to.
Everything arises and passes sooner or later. Nothing is Permanent, change is the only permanent thing in this world. Change is the only reality in nature.
Just watch, everything appears and disappears, watch whatever arises and passes, remain equanimous. Don’t get excited when happiness comes. Dont’ worry when misery comes
Remember Nothing is Permanent. When you know this, nothing can disturb you. You can be still every moment.