rospy.init_node('grasp_object')

This line of code initializes a new ROS node with the name 'grasp_object'. The node is a fundamental component of ROS architecture that serves as a communication channel for different parts of a distributed system. In this case, the 'grasp_object' node is likely responsible for controlling a robotic arm or gripper to grasp an object. By initializing this node, the programmer can create publishers and subscribers that can communicate with other nodes in the system, enabling the robot to perform its task.