N'ezie, egwu a bụ ihe mgbochi nke uche. Oge gas na-agbanye ọkụ, ire ọkụ na-arịwa na mberede, na-esonyere ya na ụda adịghị ike, na-egosi ọkụ nke gas.
Akụkọ ọkụ a na-akọ mgbe niile na-esi n'iji gas eme ihe na-ezighi ezi nwere ike tinyewo ụjọ nke mmụọ.. Ka o sina dị, ọ dịghị mkpa maka nchegbu ma ọ bụrụhaala na a na-edobe ikuku kwesịrị ekwesị n'ime ụlọ. Na mgbakwunye, A na-eji stovu gas nwere atụmatụ nchekwa buru ibu, na-eme ka ojiji ha dị mma.