Abu mafi muhimmanci da aka fi buƙata a hamada shi ne ruwa, domin ai maganin ƙishirwa, amma kuma abu ne mai wahalar gaske a samu ruwa a hamada. Kuma ba abu ne mai yiwuwa ba, a samu wani abinci a cikin yashin hamada. Hakan na nufin kenan duk wata dabba da zata rayu a hamada, ya zama wajibi ta zamanto tana da wata kariya daga jin ƙishirwa da kuma yunwa. Babu shakka haka abin yake ga raƙumi, domin babu wata dabba da ta fi shi jure ƙishirwa da yunwa.