need a small confirmation about how this package is executing

 Hi to all,

I have a package with two procedures defined in that and tow anonymous blocks

while i am executing that procedure from package only one time i am getting out put and if i ran the same second time the anonymous block is not getting executing.

if i open the another session also only one time is executing and if i run the second time the same no out put is comming.

create or replace package packtwo is

procedure p1 ;

procedure p2;

end;

create or replace package body  packtwo is

procedure p1  is

begin

dbms_output.put_line('From procedure one');