In a world where the walls and barriers affecting immigrants and their families are becoming higher and more dangerous to cross, The Migratory Intelligence offers a series of emotional, physical and social strategies to resist and overcome the difficulties, stress and grief involved in leaving one's origins. Based on scientific evidence, but with a friendly language, this book is a valuable support in situations of fear, loneliness and helplessness. An essential aid in the face of the suffering that some years ago the author called 'Ulysses Syndrome', a name in memory of the Greek hero who, like the migrants, made a pilgrimage for years with nostalgia on his back, as he was far from his land and his people. Psychiatrist Joseba Achotegui compiles in this manual the most effective methods for overcoming adversity and developing a resilient attitude after decades of intense work dedicated to assisting immigrants, exiles and displaced persons.