What does hamlet seem to wish for in lines 129-133?

129. Ham. O, that this too too sallied flesh would melt,

130. Thaw, and resolve itself into a dew,

131. Or that the Everlasting had not fixed

132. His canon 'gainst self-slaughter. O God, God,

133. How weary, stale, flat, and unprofitable

He doesn't want suicide to happen