Search his biography and various sites about him and you may find your answer there.

http://www.joserizal.ph/ph01.html

http://joserizal.info/

Distressed by how his politics had made life difficult for his family in the Philippines, the homesick Rizal longed to abandon his Hong Kong–based ophthalmology practice and return to his country. Despite opposition from his family and the progressive patriots in the Propaganda Movement, who feared for Rizal’s life, Rizal returned to the Philippines in June 1892. Before setting sail for his homeland, Rizal drafted 2 letters, which he requested to be published after his death. The first was to his parents, explaining his actions. In the second, he addressed his compatriots, acknowledging his dangerous position, and reiterating his unwavering beliefs:

The step that I have taken, or about to take, is undoubtedly very perilous, and I need not say that I have pondered it a great deal. I realize that everyone is opposed to it; but I realize also that hardly anybody knows what is going on in my heart. . . . I prefer to face death cheerfully and gladly give my life to free so many innocent persons from such unjust persecutions. . . . I wish to show those who deny us patriotism that we know how to die for our duty and our convictions. What matters death if one dies for what one loves, for native land and adored beings?2(p15)

http://archopht.ama-assn.org/cgi/content/full/119/2/280?ck=nck

http://www.nospank.net/bigelow.htm