MoveIt add collision box coordinates system understanding

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Hey there,

Anyone can help me understanding moveIt coordinates system while adding collisions. I am attaching the code and I want an understanding of one lines.

Src of code : Moveit tutorials : moveit_tutorials/doc/collision_environments/scripts/collision_scene_example.py

from __future__ import print_function

import rospy
from moveit_commander import RobotCommander, PlanningSceneInterface
import geometry_msgs.msg
import time
import sys

class CollisionSceneExample(object):

    def __init__(self):
        self._scene = PlanningSceneInterface()

        # clear the scene
        self._scene.remove_world_object()

        self.robot = RobotCommander()

        # pause to wait for rviz to load
        print("============ Waiting while RVIZ displays the scene with obstacles...")

        # TODO: need to replace this sleep by explicitly waiting for the scene to be updated.
        rospy.sleep(2)

    def add_one_box(self):
        box1_pose = [0.25, 0.25, 0.0, 0, 0, 0, 1]
        box1_dimensions = [0.25, 0.25, 0.75]

        self.add_box_object("box1", box1_dimensions, box1_pose)

I want the explanation of below line:

        box1_pose = [0.25, 0.25, 0.0, 0, 0, 0, 1]  # Over here arg_1 = X pos, arg_2 = Y pos, arg_3 = Z pos, What about others?

Thanks for helping!