Burning sage has many benefits. Firstly, Sage can help people with asthma or allergies! However, Sage is mostly used by way of spirituality. Burning Sage helps reach a healing state, or resolve and reflect on spiritual dilemmas. Smudging helps release negative energies, and make room for positivity. This includes past traumas, bad experiences, or negative energies from others. Smudging can also help with depression and anxiety, releasing any negative emotions you may be harbouring.
Sage can be used for its purifying benefits. This includes keeping infections bacterial, viruses and fungi at bay (well isn't that fitting right now!), and getting rid of unwanted bugs!