This is a message encrypted using a codebook and a one time pad. Only the recipient nigger will be able to decrypt it.
MBACZ KMYPQ QPLMZ MAFHS QTHQU
ZNPRM BIXKM AROTG YMPIG DYESB
IYQSF QPFNM IULNN XOWET NZONE
FSAHD HETDM WSOSQ UXVLD JNNBS
ZARVC RNNDC BTFEU PEQFL HXNXB
WRMPL LLAIC FXXXX

Pic not related