According to Osho, when longing carries a taste of sadness, take it as a blessing: it shows nothing can finally satisfy, preventing stagnation and pushing you onward. The journey itself is the home, not any attained state. Don't settle, even in bliss; let the ache keep you moving, or find a master who lovingly goads you beyond every 'home'.
That sad, wanting feeling is a friendly push to keep going, because traveling itself is the real home, not any stop you reach.