The speaker is asking someone they miss to live fully, not quietly or cautiously, but loudly and in good health. What stands out is the reason given: the speaker's own ache can only heal if the other person is doing well. Their healing depends on the loved one's happiness, which says a lot about how much they care.
The tone is gentle and a little pleading. The repeated "please" at the start sounds almost like a whispered request, and the short, broken lines make the voice feel hesitant, as if the speaker is choosing words carefully around a sore spot. The final line, "with or without me," is the most telling. It suggests the two may be apart, and that the speaker has accepted this, or is trying to. The mood is bittersweet: sad about the distance, but generous. It's a kind of love that lets go without bitterness, wanting the other person to flourish even if the speaker isn't part of that life.