The new opening toward the future, though he would not trust in any definite visions, inevitably shed new lights, and influenced his mood toward past and present; hence, what Hans called his hope now seemed to Deronda, not a mischievous unreasonableness which roused his indignation, but an unusually persistent bird-dance of an extravagant fancy, and he would have felt quite able to pity any consequent suffering of his friend's, if he had believed in the suffering as probable. 
The revelation about his birth shed new lights, and influenced his mood toward past and present; hence, what Hans called his hope now seemed to Deronda, not a mischievous unreasonableness, but an unusually persistent bird-dance of extravagant fancy, and he would have pitied any consequent suffering of his friend's, if he had believed he would suffer. 