In Surat al-Dhariyat Allah says:
Allah tells us in this ayah, that He has created us to worship him. This is different from the animals, who were created for other reasons, such as being for our benefit:
Unlike animals, we have capabilities such as the ability to understand, to intend or will something, to direct ourselves to Allah, follow His guidance and repent after committing sins. We are able to make decisions, and see right from wrong.
Wasting time and being lazy does not allow us to live up to this purpose.