Sitting with grief does not seem to lend itself to a meditative calm. Perhaps the Practice needs be so second nature that it—the Something that reaches out to soothe, to comfort, is summoned then and there. Or perhaps it is the message that even grief, in its own justification for being, is something that feeds the ego. The ego of self.
When the walking is difficult we sit. When the sitting is difficult we lie down in our beds. When that cannot be done, it no longer matters.